圆头象白蚁

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. This will just take a minute. Youve probably chased a fly or two around the house this summer. And, chances are, it took a few swings before you brought down the buzzing nuisance.

发表于:2018-12-02 / 阅读(267) / 评论(0) 分类 Scientific American(八)月

This is the VOA Special English Health Report. Every few years, two groups do a study of how many Americans wash their hands after using the toilet. These groups are the American Society for Microbiology and the American Cleaning Institute, formerly

发表于:2018-12-07 / 阅读(186) / 评论(0) 分类 2010年VOA慢速英语(九)月

[全屏观看] 点击右键- 另存为 可保存这个Flash影片

发表于:2018-12-12 / 阅读(243) / 评论(0) 分类 北美小学生英语一年级教材(牛津英语教材)

World Hepatitis Day is observed on May the 19th. It aims to increase awareness worldwide of the diseases hepatitis B and hepatitis C. Its hope is to encourage the prevention and diagnosis of these two diseases, and increase the number of people who r

发表于:2018-12-29 / 阅读(195) / 评论(0) 分类 英语课程学习计划和讲义

今天我们要学的词是tit-for-tat. Tit-for-tat意思是针锋相对,以牙还牙。Islamist militants' attacks and tit-for-tat violence between rival ethnic groups have cast doubt on Mali's upcoming elections. 伊斯兰国激进分子的袭击和

发表于:2018-12-30 / 阅读(172) / 评论(0) 分类 英语单词荟萃

The Tertiary Education Commission (the TEC) announced the funding for polytechs and universities for the next 3 years. The TEC is the government organisation responsible for tertiary institutions like polytechs and universities so this is government

发表于:2018-12-31 / 阅读(217) / 评论(0) 分类 新西兰英语

By Jessica Berman The U.S. space agency has released the first close-up pictures of Titan, Saturn's secretive, giant moon. Photos from the international Cassini spacecraft show the orbiting object shr

发表于:2019-01-03 / 阅读(201) / 评论(0) 分类 VOA2004(下)--健康科技

Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol

发表于:2019-01-08 / 阅读(207) / 评论(0) 分类 Scientific American(八)月

The U.S. Special Inspector General for Iraq Reconstruction has criticized the State Department for its management of nearly $3 billion in contracts and grants in Iraq. In two reports, auditors cited weak and ineffective State Department oversight of

发表于:2019-01-13 / 阅读(313) / 评论(0) 分类 VOA标准英语2010年(一月)

The US government is considering, for the first time, the approval of a genetically-modified animal for human consumption. The animal being considered is salmon, but approval could open the door for other animals as well. Those who favor the move say

发表于:2019-01-13 / 阅读(246) / 评论(0) 分类 VOA标准英语2010年(七)月

Stomach cancer is one of the deadliest diseases, and ranks second among cancers worldwide with at least 800,000 deaths yearly. But in the United States, the number of cases has been declining, except for among one group of Americans. Glenda Reimer, h

发表于:2019-01-13 / 阅读(195) / 评论(0) 分类 VOA标准英语2010年(五)月

At Scripps Research Institute in Jupiter, Florida, scientists are working to find clues about how the human brain processes memories. Their laboratory test animal is not a chimp or a dog or a rat animals that we know can remember things it is the com

发表于:2019-01-13 / 阅读(229) / 评论(0) 分类 VOA标准英语2010年(三月)

This is the VOA Special English Development Report. Health experts predict that soon, more people will die from cancer than from AIDS, tuberculosis and malaria combined. They expect that by two thousand ten, cancer will become the world's leading cau

发表于:2019-01-20 / 阅读(187) / 评论(0) 分类 2010年慢速英语(三)月

Glaucoma is the leading cause of irreversible loss of vision worldwide and now doctors believe the devastating disease begins in the brain and not in the eye as has long been thought. Dr. David Calkins, director of research at the Vanderbilt Eye Inst

发表于:2019-01-20 / 阅读(189) / 评论(0) 分类 VOA标准英语2010年(三月)

Tit for Tat针锋相对An American lady traveling in England some years ago, got into an compartment of a smoking carriage where an Englishman was smoking a pipe. For a short time she sat quietly expecting that the Englishman would stop smoking. But

发表于:2019-01-28 / 阅读(200) / 评论(0) 分类 英语小达人

72 约翰斯·霍普金斯疟疾协会 DATE=7-19-01 TITLE=SCIENCE REPORT - Johns Hopkins Malaria Institute BYLINE=Jill Moss (Start at 01'0

发表于:2019-01-30 / 阅读(250) / 评论(0) 分类 科技之光

今天我们要学的词是multitasking。 Multitasking, 原本是计算机术语,指多重任务同时处理,现在已经被沿用到日常生活中,指同时干很多事情。现在的美国中学生,一边写作业,一边听音乐,还要

发表于:2019-02-02 / 阅读(172) / 评论(0) 分类 英语单词荟萃

Offering Substitute 提供代用品 Specimen Letters1. Offering Rayon in Place of Watered Silk提供人造丝代替水洗丝Dear Sirs,Thank you for your fax of yesterday (April 3) with your order No.456 for 5,000 metres of 100cm wide watered silk. We

发表于:2019-02-05 / 阅读(261) / 评论(0) 分类 实用英语

Weddings are a sacred ritual and formal expression of love between two people promising to spend the rest of their lives together. 婚礼是一种神圣的仪式,它表达了两个人要携手余生的决心。 And as such, the importance of such a

发表于:2019-02-07 / 阅读(229) / 评论(0) 分类 英语新闻

By Peter Fedynsky Gdynia, Poland 04 November 2009 A red banner with hammer and sickle is seen outside the Polish Embassy in Moscow (File) The symbol of Communism - the hammer and sickle - represents the main tools of physical labor used by industria

发表于:2019-02-12 / 阅读(195) / 评论(0) 分类 VOA标准英语2009年(十一月)
学英语单词
-phag
adiaspiromycosis
Aeschynanthus lasiocalyx
Ambalabe
androcidal action
antibicycle
arch-house
audio index
aurous azide
autodyne reception
autophagocytosis
bat.
behlen
biligrafinforte
billiard-ball
biquadratics
bumper stop
calypsos
can pack
canvas opera
cascade voltage transformer
cimicidine
coal wall
coaxial socket
computer aided diagnosis
continuous annealing oven for silicon steel sheet
cot(continuity message)
cyber marketing
deliberative assembly
device history record
diethylamine hydrochloride
EBDD
electrically heated pressurizer
end conditions
equaliser
exhaust gas cleaner
expandable spreader
eye-stalk hormone
far sight
fort providence (providence)
furcreastatin
generalizers
Greenbrier R.
halden
hi jacking
hilling
horizontal twin-roller machine
hyperdeformations
illiberalisms
ISO container
isopropylphosphoramidothioic acid ester
isotopic atomic weight
life-years
lutjanus ophuysenii
Methylophilus
middle elixir field
mirrours
mulcting
musselshell
Nassau dollar CD
needle therapy
neochanin
new items
nidificates
Oceanites oceanicus
ordinary elastic deformation
participative
PC-904
phenospecies
pile supported building
Pinus pumila
Pioneer metal
pipe rack
plurality of creditors
positive hydrotaxis
postulative
pour oil on troubled water
process man
processal
protostanes
raw stock dyeing
real-time spectrum analyzer
register of operating expenses
regular gas
room temperature vulcanization
sex chromatins
soullessness
sound groove
subcritical reactor
superfamily Muroidea
switch control
symplocarpus foetiduss
syndrome differentiation of concurrent visceral manifestation
take sth on trust
thrillful
triazeno
tuitive
waive
Wohltorf
Yae-yama
Zeti
ZML